Atari 1040STf troubleshooting
Posted: 05 Jan 2026 21:46
Hi Guys
I have Atari 1040 STf thats not working
It was given to me by a neighbor who was moving house. The ST shows the Power LED when turned on but no other signs of life. The floppy LED does not come on with or without a disk in the drive.
I have tried a known good ST power supply and a known good Floppy drive with the same symptoms. Unplugging the keyboard does not produce the constant beeping noise either.
At the moment i don't have the correct monitor cable to see what display output its giving
The motherboard looks clean and i believe it has never been opened before i got it.There does not look to be any swollen,leaking caps and all socketed chips have been reseated by myself
I have ordered a replacement shifter chip and monitor cable, is there any other test i should be doing to try narrow down the issue.
Any advise appreciated
Thanks
I have Atari 1040 STf thats not working
It was given to me by a neighbor who was moving house. The ST shows the Power LED when turned on but no other signs of life. The floppy LED does not come on with or without a disk in the drive.
I have tried a known good ST power supply and a known good Floppy drive with the same symptoms. Unplugging the keyboard does not produce the constant beeping noise either.
At the moment i don't have the correct monitor cable to see what display output its giving
The motherboard looks clean and i believe it has never been opened before i got it.There does not look to be any swollen,leaking caps and all socketed chips have been reseated by myself
I have ordered a replacement shifter chip and monitor cable, is there any other test i should be doing to try narrow down the issue.
Any advise appreciated
Thanks